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No sound on Youtube video or Flash on Mac?

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Written by Heather Buckley – Wed 02 Mar 2011

No Sound on YouTube Video on Mac

Just a very quick post as this has been driving me mad since I got my new Power Mac using OSX. I had sound on the computer for most things but no sound on YouTube and some Flash animation.

Having a look around for the answer, as usual I was presented with lots of complicated fixes. I chose the simplest and it worked straight away with out having to download anything dubious!

Q: How do I get sound on Youtube on my Mac?

A: delete the /Library/Preferences/Macromedia folder

Simples ;)

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No sound on Mac reset sound options

No sound on Mac reset sound options

No Sound on Mac Update

Some people may find that after installing Mac OS X 10.5.6 update your Mac may appear to have lost it's sound.  For some reason the update sets the sound output to “Headphones” instead of “Internal speakers”. You will need to set it back to “Internal speakers”  to get the sound back.

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